Squirrel Kits Added

On March 5, 2017, we added a 206-piece Squirrel and a 583-piece Squirrel to our Animal Designs. Previous animal designs used a single axis for motion. The 583-piece Squirrel uses linkages to accomplish body and hind leg motion. Linkages provide more weight-bearing and avoid gaps but model skeletal systems less accurately. We'll feature linkages in a future Article or Technique.